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Finding the Fourth Proportional to 141,922.32, 195,854.04 and 78,262.32

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Solution

The fourth proportional to 141,922.32, 195,854.04 and 78,262.32 is: 108,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,922.32 : 195,854.04 = 78,262.32 : x
  2. Step 2: Convert to fraction form
    141,922.32/195,854.04 = 78,262.32/x
  3. Step 3: Cross multiply
    141,922.32x = 195,854.04 × 78,262.32
  4. Step 4: Simplify right side
    141,922.32x = 15,327,991,551.77
  5. Step 5: Solve for x
    x = 15,327,991,551.77/141,922.32
  6. Step 6: Final answer
    x = 108,002.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.